Liquid filling method for soft bag infusion products

Abstract

The invention discloses a liquid medicine filling method for a soft bag transfusion product. According to the method, a produced soft bag serves as a packaging container, a liquid cavity is formed in the soft bag, and a filling port is formed in the liquid cavity. During filling, a filling head is inserted in the filling port which is opened by suction, a pair of clamping plates are used for clamping the side wall of the filling port from front and back directions, liquid medicine is filled, a pair of clamps are used for clamping the side wall of the liquid cavity together, the liquid medicine is separated from the filling port and the filling head, the filling head is withdrawn, the filling port is subjected to heat sealing, and the liquid medicine filling is completed. According to the method, the side wall of the filling port can be prevented from being tainted with liquid medicine during filling, and the side wall of the filling port and a filling head are prevented from being tainted with the liquid medicine during withdrawal of the filling port, so that the problem that the filling port side wall is contaminated during liquid medicine filling through the filling port is effectively solved, and the reliable heat sealing of the filling port is guaranteed.

Description

technical field [0001] The invention relates to a liquid medicine filling method of a soft bag infusion product for filling a soft bag liquid cavity through a filling port. Background technique [0002] The packaging containers of existing infusion products mainly include several commonly used types such as glass bottles, hard plastic bottles and soft bags made of plastic materials. Among them, the glass bottles need to continuously introduce air into the glass bottles through the ventilation pipeline during the infusion process, resulting in Pollutants such as dust in the air enter the glass bottle and cause drug pollution; hard plastic bottles are also relatively hard, and ventilation pipes are still needed, so they have the same defects as glass bottles; soft bags only pass through the external atmospheric pressure. It can make the liquid in the bag output without introducing air, and the material is transparent and easy to use, so it is more and more widely used in c...

AI Technical Summary

Problems solved by technology

[0006] Setting a special filling port on the liquid chamber of the soft bag infusion product facilitates the filling of the liquid medicine and creates conditions for improving the filling speed of the liquid medicine, but the filling port needs to be opened after filling the liquid medicine. Carry out heat sealing, and once the side wall of the filling port is contaminated with liquid medicine, it will directly affect the heat sealing effect of the filling port. When the liquid is less contaminated, air bubbles will appear on the heat sealing edge of the filling port , reduce the sealing strength of the filling port, bury hidden dangers of leakage, and when there is a lot of liquid contamination, it will lead to the inability to perform airtight heat sealing on the filling port. Therefore, it is difficult to use the filling port to fill the liquid medicine. question

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